First off if you saw it on the history channel then there is a SMALL chance the imformation is correct. I am always astonished at the lack of knowledge of their "experts". I have seen a picture of this gun, it is owned by a museum. It is a H & R single shot "gardengun". These were cheap singleshots guns built to chamber the 44 WCF aka 44-40 shot and ball loads. Many people are reported to have used regular 44-40 ammo in them as well.